George b



(No Model.) l

G. B. PULLINGER.

. Insect Screen.

No. 235,812. PatentedDec. 21,1880.

NITE STATES PATENT EETEE..

GEORGE B. PULLINGER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR 0F CNE-HALFTO AM. MILLER OWENS, OF SAME PLAGE.

lNSECT-SCREEN.

SPECIFICATION forming part of Letters Patent No. 235,812, dated December21, 1880,

Application led June l2, 1880. (No model.)

To all whom t may concern:

Be it known that I, GEORGE B. PULLINGER, a citizen of the United States,residing in the city and county of Philadelphia, and State ot'Pennsylvania, have invented a new and useful Improvement in Mosquito orother Insect Screens, which improvement is fully set forth in thefollowing specilication and accompanying drawings, in which- Figure l isa front view of the mosquitoscreen embodying my invention. Fig. 2 is avertical section thereof in line .fr Fig. l. Fig. 3 is an enlarged vien1of adetached portion.

Similar letters of reference indicate corresponding` parts in theseveral figures.

My invention consists of netting attached to sash-frames and Wound onand unwound from gravitatingrollers which are fitted to boxes secured tothe cap and siii of a windowcasing, said boxes also having guide-rollersfor directing the main length of the netting to and from the rollers, aswill be hereinafter set forth.

Referring to the drawings, A represents a window-casing, and B B theupper and lower sashes, respectively, thereof. C represents the screenfor the upper sash, and G the screen forvthe lower sash.

The screen C consists of a piece of netting secured to the bottom railof the sash, extended to the sill and directed under a horizontalroller, D, which is journaled to a box, E, connected to the sill, andthen secured to a horizontal roller, F, whose journals or gudgeons a areguided in slots b in the upright side pieces, Ef, of the box E. Attachedto said side pieces, E', are cords or straps G, which are also securedto the journals or ends of the roller F, so as to wind on" and unwindtherefrom.

The upper screen, C, is connected to the top rail of the lower sash, thebox E is secured to the cap of the window-casin g, and the guiderollerDis journaled to the top of the box, the parts being, in fact, thereverse o f those ot' the lower screen. f

When the lower sash is raised the screen C is extended and unwound fromthe roller F, and thev screen Gis wound on the roller Ff. 5o When thesash is lowered the screen C is extended and the screen `G wound on theroller F, so that at all times the top and bottom spaces ot' an openWindow, whether occasioned by lowering the upper or raising the lowersash, are guarded or screened by netting, it being not-iced that theupper sash may always remain lowered Without at'tecting the utility ofthe screen.

When the lower sash is lowered the screen 6o C is permitted to descend,thus no longer controlling the roller F, which, in its tendencyY tofall, is caused to rotate by the restraining action of the cords orstraps G, and thus the netting is dra-wn taut and wound on the roller.The upper screen, C, being drawn down and over the roller D', rotatesthe roller F', and as this roller rotates, the restraining action of thecords or straps G causes said lroller to rise and unwind the netting. y7o When the lower sash is raised it draws with it the netting Gf, and asthe latter is directed around the roller D and draws on the roller F,the strap or cord G, beingcaused to wind around said roller F, andthusrotate it, elevates the roller and properly unwinds the netting as itisrequired for the ascending sash. The upper netting, G, being raised withthe ascending sash, permits the roller F to fall, and the straps G',unwinding from said roller, 8o cause it to rotate in the properdirection for winding up the netting carried up by the ascending sash.

In every operation the netting lies close to the window-casing andprevents entrance ot' 85 mosquitos and other insects thereat, and asingle piece of netting is employed `for each screen.

Having thus described my invention, what I claim as new, and desire tosecure by Let- 9o ters Patent, is

1. In combination with a window-sash, a pair of screens attached,respectively, to the top and bottom thereof, a pair of gravitatingrollers for the other ends of said screens, and friction-cords whichsupport said rollers and wind upon them, causing them to revolve asthesash is raised or lowered, whereby said screens are always drawn tautand cover the a screen, C, a stationary roller, D, a vertispaces aboveand below said sash, substancally-movable roller. Rand afrioton-cord,G,ro tially as set forth. supporting said roller and Winding on the 2. Incombination with the screen and its journal thereof, as set forth.

5 roller, the vertically-slotted boxes E and the GEORGE B. PULLINGER.

straps or cords C, which are attached at one Vtnesses: end to saidrollers and xed at the other end. J oHN A. WIEDERSHEIM,

3. In combination with a Window-sash, B', A. P. GRANT.

